Offshore structures such as oil platforms, wind turbines and marine renewable energy devices are constantly exposed to a harsher environment, which requires a deep understanding of the wave interaction with marine structures such as bottom-mounted ones to make them reliable, safe and cost-effective.
Rim Un Ryong, a researcher at the Faculty of Shipbuilding and Ocean Engineering, has considered the interaction between a monochromatic incident wave and multiple bodies mounted on an undulated seabed using an exact Dirichlet-to-Neumann (DtN) boundary condition on an artificial circular cylindrical surface by which the fluid domain is divided into an interior subdomain and an exterior one.
The proposed method was validated by precedent results with a bottom-mounted circular cylinder and showed good agreement. Then, it was extended to the cases of a single rounded-rectangular cylinder, a 2*2 array and a 2*1 array with a paraboloidal shoal.
The proposed model can be applied to the study of the wave interaction with multiple bottom-mounted marine structures with irregular configurations whether the seabed is flat or undulated.
If further information is needed, please refer to his paper “Wave interaction with multiple bodies bottom-mounted on an undulated seabed using an exact DtN artificial boundary condition” in “Journal of Ocean Engineering and Marine Energy” (EI).
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